Mining machine



March 24,1925.

(l E. DAVIS MINING MACHINE Filed May 23. 1922, 5 Sheets-'#SheeI l E llll ww w f W@ ,K .flllrrllllllllllfl! Il: a w f W w y, nx

"Nimh 24, 1925.

C. BAW@ MINING MACHINE FI le@ .my 23, E21

5 Smets-Sheet 2 Pell l .lili

j @Mgg-ggz@ March` 24,' 1925 c. E. DAVIS MINING MACHINE Filed may ,25. 1921 5 sheets-sheet 5 n". wir/2 Mafl 24,1925.

CL DVES MINING MACHINE 5 Sheets-Sheet 4 Filed May 25, 1921,

March 24, 1925.` y

` 3. E. DAVIS MINING MACHINE Filed May 23'. 1921 5 sheets-'sheet I5 m/Qmol- Cha/desi.'

@rele/.eier

cemirrree corre, or o' recreo, errciiroie, essie-icon fro eoomiceir iemrorectro'n :me comprimir, or rerrceeo, ricorrere, ooeroimrroii or remmers.

Application ilel Hey 23, w21. Serial' No. L-'Zlt To @ZZ whom 'z'zf may comme: connection with the cutting ciement, and also mi il, imowu that TQ, C miziee Er @M159 o wih suiwoie droit mechanism for feeding citizen of rhe United Scee, residing or movin@7 the machine to ille coal'. Chicago, iii he county @ook :jmd Siete of fin the present invention l have provided 5 illinois, have invented e Milliea Machine, e -novcl arrangement of the feeding mecheg of which. he following ieee speci cetioi. nism und cutter chain gearing by combining G0 This invention relates to improvements if: them ai; one end ci? che motor housing theren mining machines, und more pari-icuerly to by reducing bhe dimensions of the machine coal cutting machines of che type known es to o minimum. The cutter bar is pivot'aliy 1U longwall machines. mounted et one end of the machine so fisio The principal objcc'i oihe present irived Gut et eiizher side ihereof, smdo, Winding 65 tion is to provide c, machine oliih the above drum of the draft ,mechanism is mounted i y description which is compact, and simpie in rotate concentricziily about the axis of the construccion, and suiichie for use in narrow cutter armi The cuter chain and the Wind# e places. Other ohjcctsiwill appear from time ing drum are driveniodepcndcntiy of each to time in the following description o' e meother, each iieing driven tl'irough suite-ble 70 chine embodying the features oit my iuveu gear reducing mechanism, but clutch means ioii. provided whereby the Winding drum may The invention consists in the corioh'ijuedcioii be connected with l:Ehe cutter arm, oo owing coi'istruclgicu and arrangement oi parte .it eboui iis vertici?A 'exis either rfeeding will hcrciimfior be described in comieclioii die Geiler ber to the cool, or for positioning v75 wihfhe accompanying dmwisigskin which it with respecc to the machine. l

Figure l is e to i phui view of a. .mining mei liso provide e novel ineens of tilting chine oons'rucied in accordance with my iii,- ihe cutter ber so as to extend laterally from vencion. the machine :it various angles with respect Figure 2 is u side view of the machine. to the face upon which the machine rests.v @u

Figure 3 im enlarged ihm View of the Referring now to the drawings, the miri--` 'che top will broken away to show ihe mech namely9 e motor Casing A.; o heed frame B;

3o aiiism. :rod the cuit-er her C. lj here shown au e1eci Figure l is a vericul cross seccion miaou fric motor with its iii-nurture 10 arranged o5 ou iie Li-+l oi Figure Il. loiigiudiimlly of ,he iiiotorrecasincf A, but it Figure 5 is r. vertical cross section reken will be umlerstoo-rY theceuyequive ent motor on line 5---5 of Figure I5. may be substituted if desired. The motor e5 Figure u is u vertical cross section taken casing' has :i bottom 11, which formsj ou liue o o of Figure P. e buse upon which the entiremachine is 90 Home ig u Hinweise rex-theel. cross .sm-f moved, The houd iruiue His mounted reartion teken on hue TML Figure 3. woriliy oi" the motor czisirig, :md is prefern iiigure h if-z ai roer vieu/oi' the uimxhin'e. obi-y in the form oit' e housing 12, enolosin 40 Figure 9 is e, horizontal cross-sccion teken the operating mechanism und provided wit ou line 9 9 of Figure c. removable cover 13'. The rearward end of 95 Figure 10 is e vertical cross-section seid housing has an overhangingportion 14, taken ou line lG-.1( of Figure 8. forming :in undercut recess opening ai, the

Figure 1l is e vertical cross-section rear and sides of the machine, sind the'cutter A taken on ihe liile 11-11 of `Figure 3. bar@ is pivotally .mounted iii this recess so Longwall mining; machines generally lle-ve that ic nuiy be swung at au angie of approxi-` i 10W ne e common feature of conseructiou un eiolimately i809, that is to say, from one side of gai/ed ironic provided Withecutting eiement the machine to the other$ so uis to cui; on adapted to extend from one side thereof. eitherside thereof.

The machine is drugged along the mine door The euti'er erm C may be provided with longitudinally of themiue well, with the :m endless cutter chain of :my approved Q cutting element extending from. one side of potierii (not shown). che machine to form :L korf. A meier is Reference to Figure el; Shows tho Preferred meuufcd on the ironic, and has oper-ecirc construccion (for niouucirig the cutter :u'm on the head frame B. riFhe inner end of cutter arm is'provided with an offset portion 15 having a hub 16 journalled in an .upwardly extending stud 17 formed integral with the head frame B, A retaining ring 18 has threaded engagement above the upper end of the hub 16 to retain the latter in place on said stud.

' Means for driving the cutter chain is enclosed in the housing 12, and includes a pinion 22 mounted on the motor armature 23 and meshed with gear 24 carried on a horizontally disposed shaft 25. A beveled pinion 26 rotates with the gear 24, and is -meshed with a second beveled pinion 27 mounted on the vertically disposed stud 28.

Said stud is preferably retained in place by means of a pin 29 splined thereto and secured at its upper end lby a suitable bearing stud 30, mounted in the cover 13, and secured at lits lower end to the frame as shown. A clutch member 32 is mounted on the exterior of the hub 33 of beveled pinion 27, said clutch member being movable vertically on said hub to engage a gear member 34, cars ried o n stud 30. Means for operating clutch member 32 may comprise any suitable construction, such as a clutch fork 37 (see Fig-1 ure 7), pivoted tothe frame. `.A forked arm 38 carried on a shaft 39 engages one side of the'clutch fork 37. The shaft 39 extends through the side Wall of housing 12, and is operated by handle 40. A.` self-aligning thrust bearing is preferably inserted in an' annular recess 36 formed in the upper end of hub 33, to take up the thrust of the bevel pinion 27.

The ear member 34 is meshed with a horizontal y disposed gear 21, carried on shaft 2Q, which extends through the hub 16 of the cutter arm, and is connected with cutter chain sprocketv 19, mounted under the offset in operation, the cable is adapted to be an-- chored at a distance from the machine so that the machiney may be moved at various speeds dependin upon the speed of rotation of the Winding rum 45. Thev cable timay be lead to' either side' of the machine as desired and suitable guiding sheavcsi?, 47, are positioned on opposite sides of the frame adjacent said drum, so that the cable may be trained rearwardl along either side and over suitable guiding sheaves 48, 43,-at the opposite end of the machine, in any desired Macnee manner necessary tor controlling the moveu ment oi the machine. Sheaves 4-7, 47, prei"- erably are movable vertically on spindles 4:7, 47, soY as to allow the cable to spool on the drum 45.

The Winding drum l l5 is provided with a lower flange 49, having a plurality of notches 5.0, 50, formed therein. ln the drawings, four of these notches are shown.

Said drum rests on a forwardly extending support 51, preferably formed integral with the Casin 12, said support being provided with a. p urality of notches 52, 52, preferably three in number, one of which is a1'- ranged in the center of the rear edge of said support, and the others being arranged atangles of approximately 90 therefrom, on opposite sides 'of the hub 17. A vertically movable latch member 53 is pivoted on the cutter arm C adjacent the drum fiange49 and the support 51, said latch being movable into positioniu notches 50 of the former, or 52 oi` the latter. Normally said latch member will be retained by gravity in one of the notches 52, of the support, so as .to lock the cutter arm in one offthe cutting positions at right angles to the frame, or in position lon gitudinally with respect to the frame, in which latter position the cutter arm is usually placed while the machine is bengmovcd "i from place to place. Suitable means may be provided for moving the latch,.such as an inclinedslot tiel, adapted to receive a suitable handle `for raising the latch when desired. By means of arrangement just described,thev cutter arm will be normally maintained in one of the positions indicated, but when it is desired to change the position of the cutter arm the drum is rotated until one of the notches 50 registers with the latch 53. Said latch may then beraised into engagement with the drum liange and the drum is rotated in the direction desired to move the cutter arm therewith to a new position. A plurality of recesses 55 suitable to receive a re^ ,movable handle, bar, or the like, may also be provided in the periphery of the drum flange 49, so as to allow the drum to be ro-v tated by hand when desired.

As has already been stated, the Incollanism 'for operating the Winding drum -15 is located in the housing l2. This mechanism includes gear member 61 mashed with an armature pinion 60, and carried on a counter shaft 62. Said gear member 61 forms a portion of a planetary transmission device 63, shown in detail in Figure 5, in which it will be seen that gear member G1 is mounted adjacent casing 64, and 2forms therewith an enclosed housing. j Said casing is free to rotate With respect to its bearings, except ing that its rotation may be controlled by means of a suitable friction band 65. The gear member 61 is provided with a sun gear pinion 66, which meshes with a planetary reversible, selfdocking, type, that dnring the cnting operation, if 'he friction cluch on lie planetarygezzl' .mechanism (S3 is released, or 'the sliding gem* Z2 is shifed to neutral' oil i'ev'eree,Y the `eneion on tho di'a. rope 4 will be ninintnined without slacking the Same, by reaeon of Mie self-1oeking Wom interposed between the cable drum and both the p'anetni'y :gem: and the reverse gear. Thefrope may i'oe siaekened whende'sred byihi-owing oni, the sini-ch '86, between the worm and 'the drinn.

claim my invention:

1. Inn mining machine, simofioi, a oesing foi said motor, o. snppori, oonneeed at one end of said niooi' seeing, n out fing element pivotaly mounted on eup- 'pory n. 'rotatable feeding eeinent also mounted on said support5 hei/'ing opein'eive connection 'with seid inoeoi and fexibfie draft means operatively connected w1 ii rotatable zeec'ingir eemenb.

2. En e mining mae'xne, n motoi, e ing for said motor, a support connected n one end of seid motor easing, e cutting; element pivotnliy mounted on said snppoi, a otatebe feeding Piemont also monnxed on 'seid support :having operativo eonneobion with seid mosoi" and Ineens ai'oi'ding' 'opei'ntive connection beween said cutting eiemeni', end said 'feeding eemeni 'to 'move the omner abou?, ies ms;

3. in a' mining machine, e, mooi', a, oneing for seid motore' :i support oonneoied at oneeiid ofsoid moto? ironing'. e Gaining element pivotnijy' mounted on seid. slippen', n lToiletiloe feeding dement nis@ menne-ed on said support iievng operative commotion with seid moto?, menne eioding an opere tive connection between, seid matting e ment and enid `feeding eiemen'; to move' die former about its exis, and means 'oi ineking seid @uiting eiemen'u 'in predeteinined positions with respeos izo seid snppoii.

4. In vn. mining machine, :L motor, ons-- ing .or seid motor, n suport; connected at one end of said motor casing, e, @uiting eiemen ivobnily mounted on said enppo'i e rotatable feeding element mounted ooneen tricnlly with the exis of seid euing; element, end fexiole diiiib means operativey connected with said feeding dement.

5. in 2L mining machine, n. freine, e motor, o euting eieinen; pivotely lnlounied on said Fiemme to swing in e horizonel pinne, a rotatable draft feeding ele-mein'l mounted conoentioaly with die pivot-a1 ms of seid cutting element and having operative cow vnect'on with seid motor, and moons affording `am operative conneezion between sind cutting element and seid feeding eiemen.

.6. )In a mining machine? n fiume. e in" "immo eo swing in e, hoiinonm. piene.. end provided with e oni/tei? ehem? n" iotndtifoe ljy w'i ie pivotal wie of seid cutter bai" und having opei'nizive connection with said moizoi, ineens affording en operative oonneeion bein/een Said Seite? bei Iand' said 7n yfeeding; element to milite the 'fornfxei1 about its miie5 and means 'i'o operning :said entier 03min independent of seid 'feeding eiemen.

n @mining machine o f'deme. e ma "'Loij, o cutting element pivotadfy mounted on seid firenze to swing; in :i hoizonml plz-me, n i'oet-ebe draft feeding element mounted ooneenricnly with the pivotal allie oi" said @noting element and having opera.- lfive connection 'with said. nioooi means noz'A @o molly looking said @uiting elemeni, 'with rel speci. '15o ehe frame, sind means affording; i driving; conneoion ai; Wil bow/'een Said ontingij eioinon sind seid feeding element.

`8. e mining machine, :in elongated 3B freine ooinpising; e niotoi end n snpport mounted et end tfneifeoi, a motor in, seid easing, oniltei bei pivotal@ mornin ed edjneeiij; the ouiner end of said support and provided Nidi nutte? eiiziiingem re- @0 duction mechanism affording; o/pefntive oonnecion between seid. eutbei chain sind said meier, a winding drinn nionnted on sind Support, and iednion mechanism aoiding operative oonneiion oeiiweeii said 535 nino'o; and said winding drum to diive the .ie-tten etA e iowei Speed than said mitteichnin. i i

9. En mining meoiiinea en elongated pranzo comprising n inoivor seeing and :i enp- 10@ por@ inonned n, one ond tiieiieoi?, a motor in. Enid edging, entier bei pivoteiy monned adjacent the onei' end of seid Support and provided witii o, onier eimin, redneion meekomen; :i'fo'ding operative conne@M 105 tion between seid ontken eiiein and seid .inotor7 e. Winding dium inountedon seid euppoif, geni' reduction. mechanism affording' opemtive oonneotioii fbeween said znoxii"` and seid Winding; dx'um drive the lette? et n. M0 lower sinned. einen. seid enter chain, and wenn@ 'finding opoi'eti've connection f beiov/een Solid iowpeed gen1 meohenism end seid ontei" bei, to move the hid/ei" about its wie.

10 In o. mining whine, e heffing e, vei'tiouy disposed sind, a euitei' erm jour nailed in seid send, and e 'Winding dm3/ ii Tomtom moulded ofbout Said sind.

3l. a mining; ninohine, o. motor, n m0 fname having Vei'tioaly disposed. @tolda e, winding drum rotatably mounted about sind sind2 nenti/ei? arm having e jouineled been ing 1n seid. stud and provided with a. cutter? Chain, :i simi'i; mounted axieily of :said jour 125 neied besi'fring9 @molded widi o. sprocket for seid chain, o gear carried by said Shei; having; operative eonneeton with seid motor. l

i2. in o mining machine, e suppone. s, 13D

motor, a cutting element pivotally mounted on said support and provided with a cutter chain mechanism affording a driving connection between said motor and said cutter chain, a rotatable feeding element, means operable independently of, said ci'itter chain driving mechanism including a reversing mechanism aifording an' operative connection between said feeding element and said motor., and means affording operative connection between said cutting element and said feeding element to swing the former about its axis.

iljln a mining. machine, a support, a motor, a cutting element pivotally mounted on said support and provided with a cutter chain mechanism affording a driving connection 'between said motor and said cutter chain, a. rotatable feeding element, means operable v.independently of said cutter chain driving mechanism including a reversing mechanism and a self locking worm andl gear, a'ordiiig an operative connection between said feedine element and said mot-or, and means affording operative connection between said cutting element and said feedn ing element to swing the former about its axis. A

le. in a mining machine, a support, a motor, a cutting element pivotally mounted on said support and provided with a cutter chain mechanism affording a driving con neet-ion between said motor and said cutterchain, a rotatable feeding element, means operable independently of said cutter chain driving mechanism, including a clutch device and a self-locking worm and gear, affording an .operative connection between ysaid feeding element and said motor, and

means affording operative connection between said cutting element and said feeding element to swing the former about its airis.

15. In a mining machine, a support, a

motor, a cutting element pivotally mountedA ing element to swing the former about its axis.

16. Ina mining machine, a motor, a cutter bar provided. with a cutter chain, driving mechanism operatively connecting said motor and said cutter chain, -a rotatable feeding element having flexible draft means connected therewith, and mechanism operi' able independently of said chain driving mechanism and a ording operative connection between said motor and said feeding element including a reversing mechanism, and a self-locking worm and gear interposed between said feeding element and said reversing mechanism. f

17. In a mining machine, a frame, 'a motor, a cutter arm pivo-tally mounted on said frame and provided with a cutter chain, means affording operative connection between said motor and said cutter chain to drive the latter, and means including areversing mechanism independent of said last named means affording operative connection between said 'motor and -said cutter arm to swing the latter about its pivotal axis.y

Signed at' Chicago, Illinois, this nineteenth day of May 1921.l K

CHARLES E. DAVIS. 

